CN109713546B

CN109713546B - Full-automatic punching and welding assembly device for terminal plug

Info

Publication number: CN109713546B
Application number: CN201811616580.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Dynamo-Electric Co Ltd In Wild Island Leqing
Current assignee: The dynamo-electric Co., Ltd in wild island, Leqing
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-02-18
Anticipated expiration: 2038-12-28
Also published as: CN109713546A

Abstract

The invention discloses a full-automatic punching welding assembly device for a terminal plug, which comprises a support table arranged in the middle of a table board, wherein a nut feeding mechanism II and a nut feeding mechanism I are symmetrically arranged on the table board outside the two transverse sides of the support table; a double-layer track plate is supported on the support table through a main support, a double-layer conveying assembly, a welding displacement assembly, an upper punching and welding assembly, a first punching unit and a second punching unit are sequentially arranged above the double-layer track plate along the longitudinal direction, a finished product displacement receiving mechanism, a lower punching and welding assembly and a discharging manipulator are longitudinally arranged below the double-layer track plate, a material distributing box is arranged below the discharging manipulator, an outlet of the double-layer track plate is in butt joint with a first terminal feeding mechanism and a second terminal feeding mechanism, and the first terminal feeding mechanism and the second terminal feeding mechanism are symmetrically distributed on two sides of the discharging manipulator; a support material belt and an iron shell material belt are arranged in the double-layer track plate. The invention has reasonable structure, reliable work and high efficiency.

Description

Full-automatic punching and welding assembly device for terminal plug

Technical Field

The invention belongs to the technical field of automatic assembly and relates to a full-automatic punching and welding assembly device for a terminal plug.

Background

The terminal plug has the advantages of large information transmission capacity, stability, reliability, large data carrying capacity, wide application and large production. For example, terminals and insulating terminals with different transmission paths from 9 pins to 50 pins are sleeved with anti-loosening and anti-vibration pads and installed in the bracket, the iron shell and the bracket are buckled with each other, and finally, the hexagonal nut is riveted and fixed to be formed. This type of terminal plug mainly adopts manual assembly at present, and the tailor of iron-clad adopts automatic processing and semi-automatic processing with the riveting process, mainly includes following not enough:

1) the iron shell and the bracket are large in cutting burrs and poor in cutting size consistency, so that the iron shell and the bracket are staggered back and forth after assembly, the hot-line contact adaptability of a terminal product and a male plug is poor, and short circuit and poor data and information transmission are caused; the product return rate is 7-15%, and the rework rate is 18-20%. 2) The anti-loose anti-vibration pad is easy to be neglected to be installed or not installed in place to cause falling off. 3) In the existing assembly mode, the iron shell, the support and the terminal need to be assembled in a posture that the iron shell, the support and the terminal are vertically and vertically converted into a horizontal posture for multiple times, and the signal transmission needle head of the terminal is often deformed and broken, so that the rework rate and the rejection rate of the terminal are high, and the service life is short. 4) The iron shell and the support are riveted and fixed through the hexagon nut, and in a large number of industrial application occasions, because the vibration makes clearance between the iron shell and the support, the iron shell and the support make the terminal and the matching plug loose along with the vibration for information data transmission is unstable. 5) Because the iron shell, the bracket and the terminal have the reasons that the installation and overturning directions cannot be identified and the terminal pin is easy to damage, the automatic feeding is difficult to implement. 6) The iron shell, the support and the hexagonal nut of the data plug are riveted through two processes, one-step forming is not needed, warping between the hexagonal nut and the iron shell and between the hexagonal nut and the support is generated, leveling processing and inspection steps have to be added in subsequent processes, and cost is increased.

Up to now, there is no successful research, development, application and patent application for the full-automatic punching and welding and full-automatic assembling equipment of the terminal plug.

Disclosure of Invention

The invention aims to provide a full-automatic punching and welding assembly device for a terminal plug, which solves the problems of low automation degree, more processing and reworking procedures, unstable product quality, low working efficiency and high cost of the prior art due to manual operation.

The invention has the technical scheme that the full-automatic punching welding assembly device for the terminal plug comprises a support table arranged in the middle of a table board, wherein a nut feeding mechanism II and a nut feeding mechanism I are symmetrically arranged on the table board outside the two transverse sides of the support table; a double-layer track plate is supported on the support table through a main support, a double-layer conveying assembly, a welding displacement assembly, an upper punching and welding assembly, a first punching unit and a second punching unit are sequentially arranged above the double-layer track plate along the longitudinal direction, a finished product displacement receiving mechanism, a lower punching and welding assembly and a discharging manipulator are longitudinally arranged below the double-layer track plate, a material distributing box is arranged below the discharging manipulator, an outlet of the double-layer track plate is in butt joint with a first terminal feeding mechanism and a second terminal feeding mechanism, and the first terminal feeding mechanism and the second terminal feeding mechanism are symmetrically distributed on two sides of the discharging manipulator;

the double-layer track plate is provided with a support material belt and an iron shell material belt, the support material belt and the iron shell material belt are generally called material belts, a hollow groove-shaped mounting opening is sequentially arranged in the middle of the material belts along the longitudinal direction, the support and the iron shell are respectively connected in the mounting opening in a punching forming mode, and all the material belts have the same discharging direction; the upper positioning holes in the iron shell material belt on the upper layer and the lower positioning holes in the support material belt on the lower layer are arranged in pairs according to the step pitch, and the iron shells on the upper layer and the supports on the lower layer are guaranteed to be opposite to each other one by one.

The invention discloses a full-automatic punching-welding assembly device for a terminal plug, which is characterized by further comprising:

the double-layer track plate is structurally characterized in that an upper layer plate and a lower layer plate are buckled and fixed into a whole, two sides of the longitudinal central line of the upper surface of the lower layer plate are respectively provided with a lower U-shaped groove, two sides of each lower U-shaped groove are respectively provided with a convex step, a slender groove is arranged in each convex step, and each lower U-shaped groove and the convex steps at two sides are matched with the outline shape of the support; two sides of the longitudinal center line of the upper plate are respectively provided with an upper U-shaped groove, the middle of each upper U-shaped groove is connected with an upper limiting plate with a square straight strip, two sides of the upper limiting plate are provided with concave steps, the concave steps are longitudinally provided with thin straight grooves at intervals, and the two upper U-shaped grooves and the concave steps at the two sides thereof are matched with the outline shape of the iron shell; each thin straight groove is communicated with one thin straight groove below the thin straight groove in an up-and-down opposite mode;

a transverse U-shaped groove is vertically formed at the tail end of the upper U-shaped groove close to the lower U-shaped groove, and a square opening through groove is formed at the vertical intersection of the transverse U-shaped groove, the lower U-shaped groove and the upper U-shaped groove.

The double-layer conveying assembly comprises a pair of feeding frames arranged side by side, each feeding frame is structurally characterized by comprising an F-shaped slide rail frame arranged on a supporting frame, the rear end of a first sliding block on the F-shaped slide rail frame is in transmission connection with a third cylinder through a first push rod, and the front end of the first sliding block is fixedly connected with a chute vertical frame through a connecting block; a fourth cylinder is vertically fixed on the L-shaped step at the upper end of the chute stand, limiting plates are respectively arranged on two sides of the front vertical face of the chute stand, a slide way is formed between the two limiting plates, the lower ends of the limiting plates on the two sides are respectively provided with a protruding lower limiting step, a second sliding block is arranged between the limiting plates on the two sides, the two sides of the second sliding block are in sliding contact with the inner edges of the limiting plates, and the second sliding block is upwards in transmission connection with the fourth cylinder through an active joint and a second; the front vertical face of the second sliding block is fixedly provided with a fixing frame, the lower end face of the fixing frame is fixedly provided with a third push rod and a fourth push rod, the lower end head of the third push rod is provided with a first thin rod, the lower end head of the fourth push rod is provided with a second thin rod, the distance between the third push rod and the fourth push rod corresponds to a pair of lower positioning holes of the support material belt, and the distance between the first thin rod and the second thin rod corresponds to a pair of upper positioning holes of the iron shell material.

The structure of the material distribution box is that the whole material distribution box is a duckbilled box body and comprises a seventh fixing plate, screw fixing holes are formed in the seventh fixing plate, a finished product material channel is arranged below the seventh fixing plate, the inner part of the finished product material channel is divided into qualified and unqualified finished product discharge holes, and a movable opening and closing plate is driven by an air cylinder to selectively open and close; the seven front ends of fixed plate are equipped with the waste material area material way, and the waste material area material is said and is communicated with waste material area discharge gate downwards.

The welding displacement assembly structurally comprises a pair of cylinders eight, wherein each cylinder eight is installed on a stripper plate through a buffer spring, a cylinder rod of each cylinder eight is connected with a conductive fixing plate two in a forward transmission mode, the fixing plate two is connected with a transformer hung on an I-shaped frame through a braided wire, and the upper end of the fixing plate two is connected with the cylinder two which is vertically pressed downwards in a transmission mode; a conductive straight rail, two conductive guide rods and two conductive inverted T-shaped straight rail strips are fixed on the front end panel of the second fixed plate, and the guide rods and the straight rail strips are respectively arranged on two sides of the straight rail; the straight rail and the guide rod are inserted into corresponding straight through grooves of the U-shaped blocks, the straight rail strips are clamped into T-shaped grooves on two sides of the U-shaped blocks, a pair of upper electrodes are mounted on the lower surface of the front sections of the straight rail strips, extending out of the T-shaped grooves, each U-shaped block is clamped and fixed on the outer wall of one electrode connecting plate II, the electrode connecting plates II are fixed on the stripper plate, and braided wires of the electrode connecting plates II penetrate through the threading holes to be connected with the transformer.

The upper punch welding assembly is structurally characterized in that a blanking cutter is slidably sleeved in an inner square groove of each electrode connecting plate II, a main body of the blanking cutter is called as a welding fixed rod, and cutter bars are fixed in parallel at intervals on a front vertical surface of the welding fixed rod; the upper end of the welding fixed rod is an installation surface, the installation surface is installed in an inner sunken groove of the upper male die plate, the two blanking cutters are connected into a whole through the installation surface by utilizing a plate, the lower end of the welding fixed rod is an inner square groove, the lower end of each cutter rod is provided with a cutter, and the cutter is longer than the inner square groove; and a pressure spring is arranged in the inner square groove and fixed on the inner plate at the mounting hole.

The lower punching welding assembly is structurally characterized by comprising four upper supporting plates, wherein two sides of a U-shaped groove in the back surface of each upper supporting plate are respectively provided with an F-shaped limiting plate, a sliding frame II is arranged in the U-shaped groove of each upper supporting plate, the lower end of each sliding frame II is correspondingly connected with a cylinder rod of a cylinder nine, the sliding frame II is fixedly connected with the U-shaped sliding frame, and the U-shaped sliding frame is tightly attached to the rear end face of the F-shaped limiting plate to slide; the rear surface of the upper supporting plate is fixedly connected with a lower electrode seat through an insulating plate, a first electrode connecting plate is arranged on the lower electrode seat, and two sides of the first electrode connecting plate are respectively provided with a stepped lower electrode; the distance between the two lower electrodes is consistent with the distance between two nut holes on the shoulder arms at the two ends of the iron shell and the bracket, the external dimension of the lower step of the lower electrode is not less than the maximum external diameter of the nut, and the large step is matched with the external shapes of the shoulder arms at the two ends of the iron shell and bracket assembly, and the upper step of the lower electrode is an electrode bar matched with the inner hole of the nut; a lower cutter is arranged at the position, close to the front, of the middle line of the pair of lower electrodes, the lower cutter is supported and fixed on a mounting plate, the mounting plate is connected with a lower electrode seat through a lower support plate and a second sliding rod and is called as a lower cutting and welding unit, and the interval between the adjacent four lower cutting and welding units is the same as that of a pair of blanking cutters in the upper punching and welding assembly; the lower electrode holder is connected with a total conductive braided belt through a soft conductive braided belt, and the total conductive braided belt is connected with a transformer and electrified; a first fixing plate is installed on the front upper portion of the upper supporting plate through a connecting plate and fixed on a first sliding frame, the first sliding frame is fixed on the linear module, and a first sliding rod is arranged at the outer end of the first sliding frame.

The punching unit I and the punching unit II are arranged in parallel in the same structure, and each punching unit is structurally characterized in that two punching cylinders are arranged between the cylinder II and the pair of assembly parts II, the punching cylinders are downwards connected with punching cutters through pressurizing rods, driving rods of the punching cylinders are in transmission connection with the male upper die plate, and the punching cylinders simultaneously drive cutters in the upper punching welding assembly through the driving rods; the punching and cutting knives comprise 4 groups in total, and each group comprises one punching and cutting knife.

The invention has the advantages that the automatic feeding, one-time blanking, welding and short-time high-speed punching-welding assembly forming modes of the nut, the terminal and anti-vibration pad assembly, the iron shell belt material and the bracket belt material are adopted, the difficult problem that the existing manual feeding and the existing punching and welding can not be integrated is replaced, the efficiency and the one-time welding qualification rate of welding assembly are improved, the consistency of punching-welding assembly products is ensured, the energy consumption and the cost are saved, and the service life of the electrode is greatly prolonged.

Drawings

FIG. 1 is a schematic exploded view of the assembled object of the apparatus of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the fully automatic press welding assembly system of the present invention;

FIG. 3 is a schematic diagram of the corresponding positions of the support material belt and the iron shell material belt structure and the stations;

fig. 4 is a schematic structural view of a double-layered track plate according to the present invention;

FIG. 5 is a schematic partial cross-sectional view of the circled portion of FIG. 4;

FIG. 6 is a first structural schematic diagram of the upper and lower mating mechanisms of the double-layer track slab of the present invention;

FIG. 7 is a second structural schematic diagram of the upper and lower mating mechanisms of the double-layer track slab of the present invention;

FIG. 8 is a schematic view of the weld indexing assembly and the upper and lower punch weld assemblies of the present invention;

FIG. 9 is a partial schematic structural view of the circled portion in FIG. 8;

FIG. 10 is a schematic structural diagram of a finished product shift receiving mechanism in the invention;

FIG. 11 is a schematic structural view of a double-deck delivery assembly of the present invention;

FIG. 12 is a schematic view of the structure of the distribution box of the present invention.

In the figure, 1, a table board, 2, a support table, 3, a first nut feeding mechanism, 4, a second nut feeding mechanism, 5, a feeding frame, 6, a first terminal feeding mechanism, 7, a second terminal feeding mechanism, 8, a discharging manipulator, 9, a material separating box, 10, a welding displacement component, 11, a lower punching welding component, 12, an upper punching welding component, 13, a double-layer conveying component, 14, a double-layer track plate, 15, a first punching unit, 16, a second punching unit, 17, a finished product displacement receiving mechanism, 18, a linear module, 19, a first sliding frame, 20, a first sliding rod, 21, a first fixing plate, 22, a connecting plate, 23, an upper supporting plate, 24, an F-shaped limiting plate, 25, a lower supporting plate, 26, a second sliding rod, 27, a lower welding unit, 28, a mounting plate, 29, a lower cutter, 30, a lower electrode, 31, a first electrode connecting plate, 32, a lower electrode seat, 33, a U-shaped sliding frame, 34, a U-, A sliding frame II, 35, an iron shell support assembly, 51, a blanking cutter, 52, an electrode connecting plate II, 53, a buffer spring, 54, a fixing plate II, 55, a straight rail, 56, an upper electrode, 57, a guide rod, 58, a straight rail strip, 60, a cylinder I, 62, an adjusting screw, 63, a buffer component, 64, a cylinder II, 65, a stamping cylinder, 66, an I-shaped frame, 67, a driving rod, 68, a combination I, 69, a combination II, 70, a combination III, 71, a positioning pressure feeding nail, 72, a transverse U-shaped groove, 74, a pressure rod, 75, a base, 76, a sliding rail, 77, a main support, 79, a backing plate, 80, a cylinder III, 81, a push rod I, 82, an F-shaped sliding rail frame, 83, a slide block I, 84, a connecting block, 85, a sliding chute upright frame, 86, a cylinder IV, 87, a limiting plate, 88, a push rod II, 89, a sliding rail, 90, a movable joint, 91, a slide block II, 93. a fixing frame 94, a first thin rod 95, a third push rod 96, a fourth push rod 97, a second thin rod 98, a support frame 100, a support frame 101, an iron shell 102, a nut 103, a terminal 104, a vibration-proof pad 113, a terminal assembly 130, an upper die fixing plate 131, an adjusting plate 132, an upper die male plate 133, a stripper plate 134, a square groove 135, a transformer 160, a sliding electrode 161, a counter bore 162, a V-shaped chute 163, a mounting frame 164, a chute 165, a bevel 166, an upper electrode surface 167, a lower step 168, a sliding edge 169, a threaded hole 170, a U-shaped chute frame 171, an extension hole 172, a bolt hole 173, a finished product discharge channel 174, a fixing plate five, 182, a material port fixing plate six, 194, a blanking cylinder 201, a waste material carrying-out hole 202, a finished product discharge port 203, a waste material channel 204, a fixing plate seven, a finished product channel 262, a finished product material channel, a material channel and an upper positioning hole, 265. waste material area, 266, material area, 273, lower locating hole, 275, cutter pole, 276, cutter, 277, welding fixed rod, 278, lower floor plate, 279, upper plate, 280, lower transport groove, 281, upper transport groove, 282, upper U type groove, 283, upper limiting plate, 284, lower U type groove, 300, inside groove, 301, installation face, 302, mounting hole, 303, cylinder eight, 304, round hole one, 305, slender groove, 306, boss step, 307, thin straight groove, 308, U type piece, 309, threading hole, 310, cylinder nine.

Detailed Description

The upper, lower, left and right positions in the following description are based on the display on the corresponding drawings, and so on.

As shown in fig. 1, the object to which the device of the present invention is assembled is a terminal plug including a holder 100, an iron case 101, a nut 102, a T-shaped terminal 103, and a vibration-proof pad 104. The support 100 and the iron shell 101 are both formed by punching, the support 100 is U-shaped, shoulders II are arranged at the front end and the rear end of the support, a left buckle is arranged at the left side of the support, and a front buckle and a rear buckle are arranged in the middle of the support; the anti-vibration pad 104 is sleeved in the left groove of the terminal 103 in advance and is called as a terminal assembly 113, the left buckle of the support 100 is clamped on the left groove of the terminal 103, the front buckle and the rear buckle in the middle of the support 100 are correspondingly clamped in two corresponding clamping holes on the lower surface of the terminal 103, and the inner edge of the step of the large end of the terminal 103 is clamped on the right outer edge of the U-shaped groove of the support 100, so that the positioning of the support 100 and the terminal 103 is realized. The right end of the iron shell 101 abuts against the inner edge surface of the large end step of the terminal 103, and two extending pins at the left end of the iron shell 101 are longer than the maximum outline of the left side of the terminal 103, so that the pins of the terminal 103 are prevented from colliding in automatic feeding, overturning and transportation; the first circular holes 304 are respectively formed in the first circular shoulders at the front end and the rear end of the iron shell 101, the second circular holes are respectively formed in the second circular shoulders at the front end and the rear end of the support 100, the first circular holes 304 and the second circular holes are aligned and buckled with each other, and a nut 102 is fixedly riveted to the upper surface of the opening of each first circular hole 304, so that a finished terminal plug product is obtained.

In addition, before assembly, the two clamping holes at the inner side and the middle of the left side of the terminal 103 are all changed into through holes, so that the upper and lower mounting end surfaces of the terminal 103 are provided with mounting holes, and the positioning and identification of the terminal 103 are facilitated.

Referring to fig. 2, the assembly device of the invention has an overall structure that a support table 2 is arranged in the middle of a table top 1, a nut feeding mechanism II 4 and a nut feeding mechanism I3 are symmetrically arranged on the table top 1 at the outer sides of two transverse sides of the support table 2 (nuts are fed before direct vibration, and the air blowing hose, a sensor, an electromagnetic valve and plc are adopted for controlling the air blowing hose to feed to the upper edge of a circular hole I304 during discharging); the double-layer track board 14 is supported on the supporting table 2 through the main support 77, double-layer conveying assemblies 13 (comprising a pair of feeding frames 5 which are arranged side by side) are sequentially arranged above the double-layer track board 14 along a feeding direction (namely from the back to the front, namely from a feeding hole to a discharging hole), welding displacement assemblies 10, upper punching welding assemblies 12, a first punching unit 15 and a second punching unit 16, finished product displacement receiving mechanisms 17, lower punching welding assemblies 11 and discharging manipulators 8 are longitudinally arranged below the double-layer track board 14, a distributing box 9 is arranged below the discharging manipulator 8, outlets of the double-layer track board 14 are in butt joint with a first terminal feeding mechanism 6 and a second terminal feeding mechanism 7, and the first terminal feeding mechanism 6 and the second terminal feeding mechanism 7 are symmetrically distributed on two sides of the discharging manipulator 8.

As shown in fig. 3, the bracket material belt and the iron shell material belt are collectively called material belt 266, a hollow groove-shaped mounting opening is sequentially arranged in the middle of the material belt 266 along the longitudinal direction, the bracket 100 and the iron shell 101 are respectively connected in the mounting opening in a punch forming manner, that is, the bracket 100 is pre-pressed in the mounting opening of the bracket material belt, the iron shell 101 is pre-pressed in the mounting opening of the iron shell material belt to form the original disc-shaped material belt 266, and all the material belts 266 have the same discharging direction; the upper positioning holes 262 of the iron shell material belt on the upper layer and the lower positioning holes 273 of the bracket material belt on the lower layer are arranged in pairs according to step distances, and the iron shells 101 on the upper layer are ensured to be opposite to the brackets 100 on the lower layer one by one, and the driving holes for the four push rods of the feeding frame 5 to move forward drive the material belt 266 to realize step feeding;

as shown in fig. 4 and 5, the double-layer track plate 14 is formed by fastening and fixing an upper plate 279 and a lower plate 278 into a whole, two sides of a longitudinal center line of the upper surface of the lower plate 278 are respectively provided with a lower U-shaped groove 284, two sides of each lower U-shaped groove 284 are respectively provided with a protruding step 306, a slender groove 305 is arranged in each protruding step 306, and each lower U-shaped groove 284 and the protruding steps 306 on the two sides are matched with the outline shape of the bracket 100 to serve as forward feeding punching and welding tracks of two bracket strips; two sides of the longitudinal center line of the upper plate 279 are respectively provided with an upper U-shaped groove 282, the middle of each upper U-shaped groove 282 is connected with an upper limiting plate 283 with a square straight strip, two sides of the upper limiting plate 283 are provided with concave steps, the concave steps are longitudinally spaced with through groove type thin straight grooves 307, and the two upper U-shaped grooves 282 and the concave steps on the two sides are matched with the outline shape of the iron shell 101 and are used as two front feeding punching welding tracks of the strip of the iron shell; each thin straight groove 307 is communicated with a thin groove 305 below in an up-and-down opposite mode and is used as a moving channel when the third push rod 95 and the fourth push rod 96 are driven; the forward-feeding press-welding tracks arranged in parallel at intervals on the double-layer track plate 14 are called linear double-layer double-row tracks;

a transverse U-shaped groove 72 is vertically formed near the tail end (outlet end) of the lower U-shaped groove 284 and the upper U-shaped groove 282, and a square open through groove (a channel for cutting, welding and blanking) is formed at the vertical intersection of the transverse U-shaped groove 72, the lower U-shaped groove 284 and the upper U-shaped groove 282, and is called a stamping and welding finished product cavity.

In the double-layer track plate 14, the support material belt and the iron shell material belt are arranged according to two stations and are opposite to each other in the vertical direction at the same time, namely, the top view projection of an iron shell 101 in the iron shell material belt is superposed with that of a support 100 in the support material belt; the iron shell belt material is arranged in two parallel longitudinal upper U-shaped grooves 282 of an upper plate 279, and thin straight grooves 307 on two sides of the upper U-shaped grooves 282 are matched with the width of the iron shell belt material upper positioning holes 262 and are called longitudinal upper conveying grooves 281; the bracket material belt is arranged in two parallel longitudinal lower U-shaped grooves 284 of the lower layer plate 278, the slender grooves 305 on two sides of the lower U-shaped grooves 284 correspond to the lower bracket material belt positioning holes 273, the boss steps 306 on two sides of the lower U-shaped grooves 284 are opposite to the shoulder plates of the lower bracket material belt positioning holes 273 and are matched with the shoulder plates in width, the boss steps are used as supporting and moving tracks of the shoulder plates on two sides of the bracket 100, the upper surfaces of the boss steps 306 form lower transport grooves 280 matched with the width of the lower bracket material belt positioning holes 273, and the size of the lower transport grooves 280 can be set according to the requirements of stamping, cutting and accurate material belt transfer.

As shown in fig. 6 and 7, the upper and lower surfaces of the double-layer track plate 14 are provided with a supporting portion, the front portion of the upper surface of the double-layer track plate 14 is provided with a discharging portion, a first punching unit 15, a second punching unit 16 and an upper welding portion, and the rear portion of the upper surface of the double-layer track plate 14 is provided with a positioning portion;

the supporting part comprises a lower supporting component, an upper supporting component and a buffering supporting component, wherein the lower supporting component is structurally characterized in that a sliding rail 76 is arranged on a base 75, a pair of main supports 77 are slidably arranged on the sliding rail 76, and a double-layer track plate 14 is jointly supported and fixed on the pair of main supports 77;

the upper supporting component structure is that a pair of I-shaped frames 66 are arranged at the front end of an upper plate 279 of the double-layer track plate 14, an upper die fixing plate 130 is jointly supported at the upper ends of the I-shaped frames 66, a stamping cylinder 65 is installed on the upper die fixing plate 130, an adjusting plate 131 (used for adjusting the height of a stripper plate 133) is fixed at the lower edge of the front end of the upper die fixing plate 130, the outer edge of the adjusting plate 131 extends out of the upper die fixing plate 130, an upper male die plate 132 is downwards connected with the adjusting plate 131, and the stripper plate; a pair of first assemblies 68 and a pair of third assemblies 70 (both in a guide sleeve and slide column combination mode) are further fixed on the upper plate 279, the upper ends of the first assemblies 68 and the third assemblies 70 are in sliding abutting joint with the lower surface of the upper male plate 132, the first assemblies 68 are respectively arranged at two sides of the eighth station 263, and the third assemblies 70 are respectively arranged at two sides of the ninth station 274;

the structure of the buffer supporting component comprises four assembly two 69 (in a buffer spring and screw combination mode), wherein two assembly two 69 are positioned between a pair of assembly three 70 at two sides of the ninth station 274, the other two assembly two 69 are positioned at two sides of the fourth station 269, the upper ends of the four assembly two 69 are respectively connected with the upper die male plate 132 in a jacking mode, and the lower ends of the four assembly two 69 are respectively fixed on the stripper plate 133; a pair of adjusting screws 62 are arranged between the second two assembly parts 69 and the first air cylinder 60, the upper ends of the adjusting screws 62 are fixed on the adjusting plate 131, and the lower ends of the adjusting screws 62 are in abutting connection with the stripper plate 133; a pair of buffer components 63 (in a spring-screw combination mode) are arranged close to the back of the pair of adjusting screws 62, the upper ends of the buffer components 63 are connected with the upper male die plate 132, and the lower ends of the buffer components 63 are connected with the stripper plate 133; the upper male die plate 132 is provided with a second air cylinder 64 for pressing;

the discharging part is structurally characterized in that a finished product shifting and receiving mechanism 17 is positioned below a lower plate 278, and a finished product discharging channel 173 at the upper part of the finished product shifting and receiving mechanism 17 is in butt joint with a finished product discharging channel of a material distributing box 9; a pair of discharging manipulators 8 are arranged on a fixing plate six 182 at the front end of the upper plate 279;

the positioning part is used for conveying the support material belt and the iron casing material belt and comprises a pair of first air cylinders 60, the pair of first air cylinders 60 are arranged on a base plate 79 on the upper surface of the input end of an upper plate 279 side by side, each first air cylinder 60 piston rod is connected with an inserted link, namely a pair of inserted links, downwards, and the pair of inserted links extend out downwards to simultaneously position the support material belt and the iron casing material belt; four positioning pressure feeding nails 71 (two in one group) are symmetrically arranged on the lower surface of the stripper plate 133, and are synchronously inserted into the iron shell material belt upper positioning hole 262 in the upper plate 279 and the support material belt lower positioning hole 273 in the lower plate 278 for positioning the support material belt and the iron shell material belt simultaneously before punching and welding;

the first blanking unit 15 and the second blanking unit 16 are arranged in parallel and have the same structure, and each blanking unit has a structure that two blanking cylinders 194 are arranged between the second air cylinder 64 and the pair of assemblies 69, the blanking cylinders 194 are downwards connected with the blanking knife 51 through the pressurizing rod 74, the driving rod 67 of the stamping cylinder 65 is in transmission connection with the male upper die plate 132, and the stamping cylinder 65 simultaneously drives the cutter 276 in the upper punch-welding assembly 12 through the driving rod 67; the punching blades 51 and the cutting blades 276 have a total of 4 groups, each group includes one punching blade 51 and one cutting blade 276, the punching blade 51 is used for punching the finished product, and the cutting blade 276 is used for punching the waste tape 265.

The upper welding part consists of an upper punching welding assembly 12 and a welding displacement assembly 10, a square groove 134 is formed in one side of the I-shaped frame 66, and a transformer 135 is installed in the square groove 134 and used for supplying power to four welding heads; the upper welding part is vertically opposite to the punching and welding finished product cavity (the position of an eighth station 263), the iron shell 101 cut and formed by the cutting component and the support 100 are superposed and combined on the finished product deflection receiving mechanism 17, the upper welding part and the lower punching and welding component 11 below the eighth station 263 are vertically opposite pressed, superposed and buckled with the iron shell 101 and the support 100, and the iron shell support assembly 35 is obtained by electrified pressurized spot welding.

As shown in fig. 8 and 9, the welding displacement assembly 10 has a structure including a pair of cylinders eight 303, each cylinder eight 303 is mounted on the stripper plate 133 through a respective buffer spring 53 (in a floating support manner), a cylinder rod of each cylinder eight 303 is connected with a conductive fixing plate two 54 in a forward transmission manner, the fixing plate two 54 is connected with a transformer 135 suspended on the i-shaped frame 66 through a braided wire, and the upper end of the fixing plate two 54 is connected with a vertically downward-pressed cylinder two 64 in a transmission manner (the cylinder two 64 is fixedly connected with the upper male die plate 132); a conductive straight rail 55, two conductive guide rods 57 and two conductive inverted T-shaped straight rail strips 58 are fixed on the front end panel of the second fixing plate 54, and the guide rods 57 and the straight rail strips 58 are respectively arranged on two sides of the straight rail 55; the straight rail 55 and the guide rod 57 are inserted into corresponding straight through grooves of the U-shaped block 308, the straight rail 58 is clamped into T-shaped grooves at two sides of the U-shaped block 308, a pair of upper electrodes 56 (spaced from the synchronous distance of the support material belt) are mounted on the lower surface of the front section of the straight rail 58 extending out of the T-shaped grooves, each U-shaped block 308 is clamped and fixed on the outer wall of one electrode connecting plate II 52, the electrode connecting plate II 52 is fixed on the stripper plate 133, and the braided wire of the electrode connecting plate II 52 penetrates through the threading hole 309 to be connected with the transformer 135;

the upper punching and welding assembly 12 is structurally characterized in that a punching cutter 51 is slidably sleeved in an inner square groove of each electrode connecting plate II 52, the main body of the punching cutter 51 is called as a welding fixed rod 277, and cutting cutter rods 275 are fixed in parallel at intervals on the front vertical surface of the welding fixed rod 277; the upper end of the welding fixing rod 277 is an installation surface 301, the installation surface 301 is installed in an inner sunken groove of the upper male die plate 132, the two blanking cutters 51 are connected into a whole through the installation surface 301 to synchronously move up and down, the lower end of the welding fixing rod 277 is an inner square groove 300, the lower end of each cutter rod 275 is provided with a cutter 276, and the cutter 276 is longer than the inner square groove 300; the inner square groove 300 is used for correcting and aligning grooves of the punched iron shell 100 and the punched support 101, and a pressure spring is arranged in the inner square groove 300 and fixed on an inner plate at the mounting hole 302 for ejecting and pressing the corrected iron shell 100 and the punched support 101 on the sliding electrode 160 for shaping and correcting before welding.

As shown in fig. 10, the finished product material receiving and changing mechanism 17 includes a U-shaped trough frame 170 and two needle cylinders mounted on a five fixed plate 174, upper end surfaces of two sides of the U-shaped trough frame 170 are respectively fixedly connected with a lower plate 278 through three threaded holes 169 by bolts, a mounting frame 163 is seated on two inclined finished product discharging channels 173 of the U-shaped trough frame 170, the mounting frame 163 is fixedly connected with three bolt holes 172 between the two inclined finished product discharging channels 173 of the U-shaped trough frame 170 through three counter bores 161 by bolts, two V-shaped chutes 162 are formed in the front of the mounting frame 163, a sliding electrode 160 is slidably mounted in each V-shaped chute 162, sliding grooves 164 on two sides of the sliding electrode 160 are in fit and sleeve connection with sliding ribs 168 on two sides of the V-shaped chute 162, an upper end surface 166 of the sliding electrode 160 is an inclined upper electrode surface 166, a front end of the upper electrode surface 166 is an inclined surface 165 with a position-changing chamfer, and a lower step 167 is formed in a rear; two inclined finished product discharging passages 173 of the U-shaped tank bracket 170 are respectively provided with an extending hole 171, and the cylinder rod of each needle-shaped cylinder penetrates through one extending hole 171 and abuts against the lower end surface of one sliding electrode 160.

As shown in fig. 8, the lower stamp-welding assembly 11 has a structure including four upper support plates 23, wherein two sides of a U-shaped groove on the back surface of each upper support plate 23 are respectively provided with an F-shaped limit plate 24, a sliding frame two 34 is arranged in the U-shaped groove of the upper support plate 23, the lower end of each sliding frame two 34 is correspondingly connected with a cylinder rod of a cylinder nine 310, the sliding frame two 34 is fixedly connected with a U-shaped sliding frame 33, the U-shaped sliding frame 33 slides closely to the rear end surface of the F-shaped limit plate 24, and the outward protrusion of the F-shaped limit plate 24 is upward along the highest position at which the sliding frame two 34 and the U; a lower electrode holder 32 is fixedly connected to the rear of the upper support plate 23 through an insulating plate, a first electrode connecting plate 31 is mounted on the lower electrode holder 32, and stepped lower electrodes 30 are respectively arranged on two sides of the first electrode connecting plate 31; the distance between the two lower electrodes 30 is consistent with the distance between two nut holes on shoulder arms at two ends of the iron shell 101 and the bracket 100, the external dimension of a lower step of the lower electrode 30 is not less than the maximum external diameter of the nut 102, and is a large step matched with the external shapes of the shoulder arms at two ends of the iron shell bracket assembly 35, and an upper step of the lower electrode 30 is an electrode rod matched with an inner hole of the nut 102; a lower cutting knife 29 is arranged at the position (the joint of the iron shell bracket assembly 35 and the material belt) close to the front of the middle line of the pair of lower electrodes 30, the lower cutting knife 29 is supported and fixed on a mounting plate 28, the mounting plate 28 is connected with a lower electrode seat 32 through a lower support plate 25 and a second sliding rod 26 and is called as a lower cutting welding unit 27, and the adjacent intervals of the four lower cutting welding units 27 are the same as the interval of a pair of blanking knives 51 in the upper punching welding assembly 12; the lower electrode holder 32 is connected with a total conductive braided strap through a soft conductive braided strap, and the total conductive braided strap is connected and electrified with the transformer 135; the front upper part of the upper supporting plate 23 is provided with a first fixing plate 21 through a connecting plate 22, the first fixing plate 21 is fixed on a first sliding frame 19, the first sliding frame 19 is fixed on the linear module 18, and the outer end of the first sliding frame 19 is provided with a first sliding rod 20.

The technological process of the assembly of the above-mentioned parts of punching and welding is, the locating part sends the iron shell material tape and support material tape to the eighth station 263 intermittently according to the fixed length interval, meanwhile, the scrap tape of iron shell 101 and support 100 is sent to the tenth station 264 and cut, drive the welding dead lever 277 to move down along the inner square trough of the electrode connecting plate two 52 by the first stroke of the blanking cylinder 194, the cutter 276 of the cutter bar 275 is stretched into the upper U-shaped trough 282 of the upper plate 279 downward, carry on the blanking of the connecting strip between iron shell 101 and iron shell material tape, the iron shell 101 cut off is pushed down and pressed on the support 100 in the support material tape by the welding dead lever 277 (the first stroke of the blanking cylinder 194 is finished and is pushed down, stop moving); the nut 102 is sent to the iron shell bracket assembly 35 (including the terminal assembly 113 pre-assembled into the bracket 100), the sliding electrode 160 of the finished product deflection material receiving mechanism 17 originally supporting the bracket material strip is driven by the first stroke of the needle cylinder to move downwards, meanwhile, the cylinder nine 310 of the lower welding assembly 11 drives the sliding frame two 34, the lower electrode 30 on the lower electrode seat 32 is pushed to move upwards along the U-shaped sliding frame 33, the electrode rod of the lower electrode 30 is inserted into the threaded holes of the iron shell bracket assembly 35 and the nut 102, the lower step surface of the lower electrode 30 supports the iron shell bracket assembly 35 and the nut 102, and the interval between the lower step surface of the lower electrode 30 and the inclined surface 165 after the first stroke of the needle cylinder stops is not less than 1mm (designed as the safe distance for the finished product material receiving after welding and subsequent cutting); the cylinder eight 303 drives the fixed plate two 54, the fixed plate two 54 is vertically pressed downwards, the pair of upper electrodes 56 are pressed on the iron shell 101 and the nut 102 (the spring-controlled inner electrode which is embedded in the round hole of the upper electrode 56 and can vertically slide downwards is pressed on the nut 102 for welding, the nut 102 is enclosed in the round hole of the upper electrode 56), the electrode surface outside the round hole of the upper electrode 56 is vertically pressed against the extending angle surface of the iron shell 101 and the support 100 supported by the lower step of the lower electrode 30, the transformer 135 supplies power, and the nut 102, the iron shell 101 and the support 100 are integrally welded by electrifying and pressurizing;

after welding of the iron shell 101 and the support 100 is completed 102, a punching and welding finished product is obtained, the punching and welding assembly 12 is reset, the second stroke of the punching and welding cylinder 194 drives the welding fixing rod 277 to continuously move downwards along the inner square groove of the electrode connecting plate II 52, the cutter 276 extends into the lower U-shaped groove 284 in the lower layer plate 278, and the joint of the support 100 and the support material belt is punched (the lower cutter 29 on the lower punching and welding assembly 11 and the cutter 276 form a shearing pair up and down to cut the support material belt connecting strip); then, the cylinder nine 310 drives the lower punching and welding assembly 11 to descend and reset, the cut bracket 100 is pressed below the iron shell 101 by the welding fixing rod 277, so that the punching and welding finished product is pressed and dropped on the surface of the sliding electrode 160 and continuously descends to the position below the 7-shaped hook horizontal rod at the front end of the discharging manipulator 8; after the sensor on the 7-type hook horizontal rod detects the punching and welding finished product, the second stroke of the needle-shaped cylinder is started, the punching and welding finished product on the sliding electrode 160 stops moving downwards, the second stroke of the punching cylinder 194 stops pressing and moving downwards and leads the cutter 276 to reset; the discharging manipulator 8 drives a vertical rod at the front end of a horizontal rod of the 7-type hook hand to pull the punching and welding finished products into a finished product channel 205 of the material distribution box 9, and the punching and welding finished products are output to a corresponding material box to be collected; meanwhile, the second air cylinder 64 drives the male upper die plate 132 to drive the cut waste material belt 265 to be sent to the first blanking unit 15 and the second blanking unit 16 by the pair of feeding frames 5 to be cut at a tenth station 264, and the cut waste material belt 265 falls into the waste material belt material channel 203 of the distributing box 9 to enter a corresponding material box to be collected; the needle-shaped air cylinder on the material shifting and receiving mechanism 17 pushes the sliding electrode 160 to reset.

The former two sets of nuts 102, after the punching welding finished product of the iron shell 101 and the support 100 is completed, the next-to-back two sets of nuts 102, the iron shell 101 and the support 100 need to be switched to another set of upper electrodes 56 of the welding displacement assembly 10 before punching welding, and the former two sets of lower electrodes 30 are led to leave the eighth station 263 by utilizing the horizontal movement of the linear module 18, so that the latter two sets of lower electrodes 30 enter the eighth station 263, and the former set of upper electrodes 56 and the former two sets of lower electrodes 30 are fully cooled.

As shown in fig. 11, the double-layer conveying assembly 13 includes a pair of feeding racks 5 arranged side by side, each feeding rack 5 includes an F-shaped slide rail frame 82 arranged on a supporting frame 98, the rear end of a first slider 83 on the F-shaped slide rail frame 82 is in transmission connection with a third cylinder 80 through a first push rod 81, and the front end of the first slider 83 is fixedly connected with a chute stand 85 through a connecting block 84; a cylinder IV 86 is vertically fixed on an L-shaped step at the upper end of the chute stand 85, two sides of the front vertical surface of the chute stand 85 are respectively provided with a limiting plate 87, a slide way 89 is formed between the limiting plates 87, the lower ends of the limiting plates 87 at the two sides are respectively provided with a protruding lower limiting step 92, a sliding block II 91 is arranged between the limiting plates 87 at the two sides, the two sides of the sliding block II 91 are in sliding contact with the inner edge of the limiting plate 87, and the sliding block II 91 is upwards in transmission connection with the cylinder IV 86 through an active joint 90 and a; a fixing frame 93 is fixedly installed on the front vertical surface of the second sliding block 91, a third push rod 95 and a fourth push rod 96 (both cylinders) are fixedly installed on the lower end surface of the fixing frame 93, a first thin rod 94 is arranged at the lower end head of the third push rod 95 (the front end of the first thin rod 94 is conical), a second thin rod 97 is arranged at the lower end head of the fourth push rod 96 (the front end of the second thin rod 97 is conical), the distance between the third push rod 95 and the fourth push rod 96 is correspondingly consistent with a pair of lower positioning holes 273 of the support material belt, and the distance between the first thin rod 94 and the second thin rod 97 is correspondingly consistent with a;

the working principle of the double-layer conveying assembly 13 is that firstly, the cylinder four 86 pushes the fixing frame 93 downwards, the lower end cones of the thin rod one 94 and the thin rod two 97 are inserted into a pair of lower positioning holes 273 on two sides of the bracket material belt on the lower layer, and meanwhile, the push rod three 95 and the push rod four 96 are inserted into a pair of upper positioning holes 262 on two sides of the iron shell material belt on the upper layer; then, horizontally pushing the chute stand 85 forwards by the third air cylinder 80, and pushing the iron shell material strip inserted by the fixed frame 93 and the two thin rods of the two push rods on the chute stand 85 and the support material strip by the distance length of one upper positioning hole 262 and one lower positioning hole 273; two pairs (four) of positioning pressure feeding pins 71 arranged on the blanking plate 133 at the upper end of the fifth station 270 are opposite to corresponding positioning holes of the iron shell material strip and the bracket material strip sent by the feeding frame 5, and the two pairs (four) of positioning pressure feeding pins 71 of the blanking plate 133 are pressed downwards and inserted into the upper positioning holes 262 and the lower positioning holes 273 under the driving of the stamping cylinder 65; when the feeding frame 5 is reset, the cylinder IV 86 firstly contracts the cylinder III 80 and then contracts; after the tape 266 is firmly positioned, the welding operation of up-down counter punching and the cutting operation of the scrap tape 265 can be performed.

As shown in fig. 12, the distributing box 9 is a duckbilled box, and includes a seventh fixing plate 204, the seventh fixing plate 204 is provided with screw fixing holes, a finished product channel 205 is arranged below the seventh fixing plate 204, the finished product channel 205 is internally divided into qualified and unqualified finished product discharge ports 202, and the opening and closing plate is driven by a cylinder to be moved to selectively open and close; the front end of the seven fixed plates 204 is provided with a waste material channel 203, and the waste material channel 203 is communicated with the waste material outlet 201 downwards.

The above-mentioned mechanism of the present invention is part of innovation, and other matching mechanisms which are not described in detail can adopt the prior art equipment or be modified adaptively.

The full-automatic punching-welding assembly device of the invention is coordinated and matched according to a preset program, and completes the assembly, punching and welding and finished product discharging of the nut 102, the terminal component 113, the iron shell 101 and the bracket 100 together.

The working principle of the device is as follows:

the coiled material belts of the iron shell material belt and the support material belt are output at equal intervals according to the distance between the upper positioning hole 262 and the lower positioning hole 273 under the driving of the stepping or servo motor of the respective material placing frame, are driven forwards by the feeding frame 5 on the double-layer conveying assembly 13, are conveyed in a stepping mode along the upper U-shaped groove 282 and the lower U-shaped groove 284 of the double-layer track plate 14, are fixed on two pairs of positioning pressure feeding nails 71 on the stripper plate 133, and are positioned before cutting;

the welding displacement assembly 10 realizes the intermittent switching operation of two groups of welding electrodes, the terminal feeding mechanism I6 and the terminal feeding mechanism II 7 rotate the vertical terminal assembly 113 to be in a horizontal state, and the horizontal terminal assembly 113 is respectively fed into the bracket 100 arranged in the middle of the bracket material belt from the transverse U-shaped grooves 72 at the two sides and is arranged in the lower U-shaped grooves 284 at the two sides; the punching cylinder 65 drives the upper male die plate 132 to drive the punching cutter 194 to cut the iron shell material belt at the eighth station 263, the iron shell 101 falls on the support material belt to be overlapped and superposed, the iron shell falls on the lower electrode 30 of the lower punching welding component 11 at the tenth station 264, meanwhile, the lower punching welding component 11 rises to match with the cutting of the waste material belt, the cutter 276 firstly cuts the iron shell 101 material belt, and the iron shell 101 falls to cover the superposed assembly consisting of the support 100 and the terminal component 113 (the terminal component 113 is wrapped between the iron shell 101 and the support 100); the nuts on the second nut feeding mechanism 4 and the first nut feeding mechanism 3 are directly conveyed to the upper parts of the circular holes 304 of the shoulder arms at the two ends of the superposed assembly through air blowing and facing the hose, the second cylinder 64 drives the upper punching and welding component 12 on the eighth station 263 to vertically press downwards, the upper electrode 56 is driven to press the superposed assembly on the lower electrode 30 of the lower punching and welding component 11, and the superposed assembly is subjected to pressure welding and forming through electric welding;

the bracket material belt is sheared by a cutting cylinder 194 with a leading cutter 276 fixed on an upper male die plate 132, a spot welding finished product is pressed down by a welding fixing rod 277, the spot welding finished product is separated from the bracket material belt and falls on a sliding electrode 160 of a finished product deflection material receiving mechanism 17, a needle electrode in an installation hole 171 on a material outlet channel 173 drives the sliding electrode 160 to descend along a V-shaped chute 162 on an installation rack 163, a 7-shaped crochet horizontal rod at the front end of a material outlet manipulator 8 presses down the spot welding finished product, and a vertical rod at the front end of the 7-shaped crochet horizontal rod pulls the spot welding finished product into a finished product material channel 205 of a material separating box 9 for output; the stamping cylinder 65 drives the upper male die plate 132 to drive the cut waste material belt to be sent to the lower parts of the first blanking unit 15 and the second blanking unit 16 by the pair of feeding frames 5 to be cut, and the waste material falls into a waste material belt material channel 203 of the material distribution box 9 to be collected;

the assembly of the second pair of nuts 102, the terminal assembly 113, the iron shell strip and the bracket strip is performed by the prior step of welding the finished products of the second pair of nuts 102, the iron shell and the bracket, but the welding displacement assembly 10 needs to be switched into the other group of upper electrodes 56, and the lower welding assembly 11 needs to be switched into the other two groups of lower electrodes 30;

repeating the above processes to realize the assembly of the nut 102, the terminal component 113, the iron shell strip and the bracket strip by flowing water punching welding.

Claims

1. The utility model provides a full-automatic impulse welding assembly quality for terminal plug, characterized by: the device comprises a support table (2) arranged in the middle of a table top (1), and a nut feeding mechanism II (4) and a nut feeding mechanism I (3) are symmetrically arranged on the table top (1) at the outer sides of the two transverse sides of the support table (2); a double-layer track plate (14) is supported on the support table (2) through a main support (77), a double-layer conveying assembly (13), a welding displacement assembly (10), an upper punching welding assembly (12), a first punching unit (15) and a second punching unit (16) are sequentially arranged above the double-layer track plate (14) along the longitudinal direction, a finished product displacement receiving mechanism (17), a lower punching welding assembly (11) and a discharging manipulator (8) are longitudinally arranged below the double-layer track plate (14), a distributing box (9) is arranged below the discharging manipulator (8), an outlet of the double-layer track plate (14) is in butt joint with the first terminal feeding mechanism (6) and the second terminal feeding mechanism (7), and the first terminal feeding mechanism (6) and the second terminal feeding mechanism (7) are symmetrically distributed on two sides of the discharging manipulator (8);

the double-layer track plate (14) is internally provided with a support material belt and an iron shell material belt which are collectively called material belts (266), a hollow groove-shaped mounting opening is sequentially arranged in the middle of the material belts (266) along the longitudinal direction, the support (100) and the iron shell (101) are respectively connected in the mounting opening in a punch forming way, and all the material belts (266) have the same discharging direction; the upper positioning holes (262) of the iron shell material belt on the upper layer and the lower positioning holes (273) of the bracket material belt on the lower layer are arranged in pairs according to step pitch, and the iron shells (101) on the upper layer are ensured to be opposite to the brackets (100) on the lower layer one by one,

the double-layer track plate (14) is structurally characterized in that an upper plate (279) and a lower plate (278) are buckled and fixed into a whole, two sides of the longitudinal center line of the upper surface of the lower plate (278) are respectively provided with a lower U-shaped groove (284), two sides of each lower U-shaped groove (284) are respectively provided with a convex step (306), a long and thin groove (305) is arranged in each convex step (306), and each lower U-shaped groove (284) and each convex step (306) on the two sides are matched with the outline shape of the support (100); two sides of the longitudinal center line of the upper plate (279) are respectively provided with an upper U-shaped groove (282), the middle of each upper U-shaped groove (282) is connected with an upper limiting plate (283) with a square straight strip, two sides of the upper limiting plate (283) are provided with concave steps, the concave steps are longitudinally provided with thin straight grooves (307) at intervals, and the two upper U-shaped grooves (282) and the concave steps at the two sides are matched with the outline shape of the iron shell (101); each thin straight groove (307) is communicated with one thin straight groove (305) below in an up-and-down opposite mode; a transverse U-shaped groove (72) is vertically arranged near the tail ends of the lower U-shaped groove (284) and the upper U-shaped groove (282), a square opening through groove is arranged at the vertical intersection of the transverse U-shaped groove (72), the lower U-shaped groove (284) and the upper U-shaped groove (282),

the blanking unit I (15) and the blanking unit II (16) are identical in structure and arranged side by side, each blanking unit is structurally characterized in that two blanking cylinders (194) are arranged between the air cylinder II (64) and the pair of assembly parts II (69), the blanking cylinders (194) are downwards connected with a blanking knife (51) through a pressurizing rod (74), a driving rod (67) of the stamping cylinder (65) is in transmission connection with the upper die male plate (132), and the stamping cylinder (65) simultaneously drives a cutter (276) in the upper die welding assembly (12) through the driving rod (67); the punching knife (51) and the cutting knife (276) are in total 4 groups, and each group comprises one punching knife (51) and one cutting knife (276).

2. The fully automatic press-welding assembly device for terminal plugs according to claim 1, wherein: the double-layer conveying assembly (13) comprises a pair of feeding frames (5) arranged side by side, each feeding frame (5) is structurally characterized by comprising an F-shaped slide rail frame (82) arranged on a supporting frame (98), the rear end of a first sliding block (83) on the F-shaped slide rail frame (82) is in transmission connection with a third air cylinder (80) through a first push rod (81), and the front end of the first sliding block (83) is fixedly connected with a chute vertical frame (85) through a connecting block (84); a cylinder IV (86) is vertically fixed on an L-shaped step at the upper end of the chute stand (85), two sides of the front vertical surface of the chute stand (85) are respectively provided with a limiting plate (87), a slide way (89) is formed between the two limiting plates (87), the lower ends of the limiting plates (87) at the two sides are respectively provided with a protruding lower limiting step (92), a slide block II (91) is arranged between the limiting plates (87) at the two sides, the two sides of the slide block II (91) are in sliding contact with the inner edges of the limiting plates (87), and the slide block II (91) is upwards in transmission connection with the cylinder IV (86) through an active joint (90) and a push; a fixing frame (93) is fixedly installed on the front vertical face of the second sliding block (91), a third push rod (95) and a fourth push rod (96) are fixedly installed on the lower end face of the fixing frame (93), a first thin rod (94) is arranged at the lower end head of the third push rod (95), a second thin rod (97) is arranged at the lower end head of the fourth push rod (96), the distance between the third push rod (95) and the fourth push rod (96) corresponds to and is consistent with a pair of upper positioning holes (262) on two sides of the iron shell material belt, and the distance between the first thin rod (94) and the second thin rod (97) corresponds to and is consistent with a pair of lower.

3. The fully automatic press-welding assembly device for terminal plugs according to claim 1, wherein: the structure of the material distribution box (9) is that the whole material distribution box is a duckbilled box body and comprises a seventh fixing plate (204), screw fixing holes are formed in the seventh fixing plate (204), a finished product material channel (205) is arranged below the seventh fixing plate (204), the interior of the finished product material channel (205) is divided into qualified and unqualified finished product material outlets (202), and the opening and closing plate is driven by an air cylinder to be moved to selectively open and close; the front end of the seventh fixing plate (204) is provided with a waste material belt channel (203), and the waste material belt channel (203) is communicated with a waste material belt discharge port (201) downwards.

4. The fully automatic press-welding assembly device for terminal plugs according to claim 1, wherein: the welding displacement assembly (10) structurally comprises a pair of cylinders eight (303), wherein each cylinder eight (303) is installed on a stripper plate (133) through a buffer spring (53), a cylinder rod of each cylinder eight (303) is connected with a conductive fixing plate II (54) in a forward transmission mode, the fixing plate II (54) is connected with a transformer (135) hung on an I-shaped frame (66) through a braided wire, and the upper end of the fixing plate II (54) is connected with a cylinder II (64) which is vertically pressed downwards in a transmission mode; a conductive straight rail (55), two conductive guide rods (57) and two conductive inverted T-shaped straight rail bars (58) are fixed on the front panel of the second fixing plate (54), and the guide rods (57) and the straight rail bars (58) are distributed on two sides of the straight rail (55) respectively; the straight rail (55) and the guide rod (57) are inserted into corresponding straight through grooves of the U-shaped block (308), the straight rail bar (58) is clamped into T-shaped grooves on two sides of the U-shaped block (308), the lower surface of the front section of the straight rail bar (58) extending out of the T-shaped grooves is provided with a pair of upper electrodes (56), each U-shaped block (308) is clamped and fixed on the outer wall of one electrode connecting plate II (52), the electrode connecting plates II (52) are fixed on the stripper plate (133), and braided wires of the electrode connecting plates II (52) pass through the threading holes (309) and are connected with the transformer (135).

5. The fully automatic press-welding assembly device for terminal plugs according to claim 1, wherein: the upper punch welding assembly (12) is structurally characterized in that a blanking cutter (51) is slidably sleeved in an inner square groove of each electrode connecting plate II (52), a main body of the blanking cutter (51) is called as a welding fixing rod (277), and cutter rods (275) are fixed in parallel at intervals on the front vertical surface of the welding fixing rod (277); the upper end of the welding fixing rod (277) is provided with an installation surface (301), the installation surface (301) is installed in an inner sunken groove of the upper die male plate (132), the two blanking cutters (51) are connected into a whole by the plate through the installation surface (301), the lower end of the welding fixing rod (277) is provided with an inner square groove (300), the lower end of each cutter bar (275) is provided with a cutter (276), and the cutter (276) is longer than the inner square groove (300); a pressure spring is arranged in the inner square groove (300) and fixed on the inner plate at the mounting hole (302).

6. The fully automatic press-welding assembly device for terminal plugs according to claim 1, wherein: the lower stamping component (11) is structurally characterized by comprising four upper supporting plates (23), wherein two sides of a U-shaped groove in the back of each upper supporting plate (23) are respectively provided with an F-shaped limiting plate (24), a sliding frame II (34) is arranged in the U-shaped groove of each upper supporting plate (23), the lower end of each sliding frame II (34) is correspondingly connected with a cylinder rod of a cylinder nine (310), the sliding frame II (34) is fixedly connected with a U-shaped sliding frame (33), and the U-shaped sliding frame (33) slides tightly against the rear end face of the F-shaped limiting plate (24); a lower electrode seat (32) is fixedly connected to the back of the upper supporting plate (23) through an insulating plate, a first electrode connecting plate (31) is mounted on the lower electrode seat (32), and two stepped lower electrodes (30) are respectively arranged on two sides of the first electrode connecting plate (31); a lower cutting knife (29) is arranged at the position, close to the front, of the middle line of the pair of lower electrodes (30), the lower cutting knife (29) is supported and fixed on a mounting plate (28), the mounting plate (28) is connected with a lower electrode seat (32) through a lower support plate (25) and a sliding rod II (26) and is called as a lower cutting and welding unit (27), and the interval between the adjacent four lower cutting and welding units (27) is the same as that of a pair of blanking knives (51) in the upper punching and welding assembly (12); the upper part in front of the upper supporting plate (23) is provided with a first fixing plate (21) through a connecting plate (22), the first fixing plate (21) is fixed on a first sliding frame (19), the first sliding frame (19) is fixed on the linear module (18), and the outer end of the first sliding frame (19) is provided with a first sliding rod (20).

7. The fully automatic press-welding assembly device for terminal plugs as claimed in claim 6, wherein: the distance between the pair of lower electrodes (30) is consistent with the distance between two nut holes on shoulder arms at two ends of the iron shell (101) and the bracket (100), the outline dimension of a lower step of the lower electrode (30) is not less than the maximum outer diameter of the nut (102), the lower step is a large step matched with the outline of the shoulder arms at two ends of the iron shell bracket assembly (35), and an upper step of the lower electrode (30) is an electrode rod matched with an inner hole of the nut (102).

8. The fully automatic press-welding assembly device for terminal plugs as claimed in claim 6, wherein: the lower electrode holder (32) is connected with a total conductive braided strap through a soft conductive braided strap, and the total conductive braided strap is connected with a transformer (135).